(a) The materials listed in this section are incorporated by reference in this part. These incorporations by reference were approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. These materials are incorporated as they exist on the date of the approval, and notice of any change in these materials will be published in the Federal Register. The materials are available for inspection at the Federal Communications Commission's Reference Information Center, located at the address of the FCC's main office indicated in 47 CFR 0.401(a), and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal__register/code__of__federal__regulations/ibr__locations.html.

(b) The following materials are available from Advanced Television Systems Committee (ATSC), 1776 K Street NW., 8th Floor, Washington, DC 20006; or at the ATSC Web site: http://www.atsc.org/standards.html.

(1) ATSC A/52: “ATSC Standard Digital Audio Compression (AC-3),” 1995, IBR approved for §73.682.

(2) ATSC A/53 Parts 1-4 and 6: 2007 “ATSC Digital Television Standard,” (January 3, 2007) and ATSC A/53 Part 5: 2010 “ATSC Digital Television Standard: Part 5—AC-3 Audio System Characteristic,” (July 6, 2010), as listed below:

(i) A/53, Part 1:2007, “Digital Television System” (January 3, 2007), IBR approved for §73.682.

(ii) A/53, Part 2:2007, “RF/Transmission System Characteristics” (January 3, 2007), IBR approved for §73.682.

(iii) A/53, Part 3:2007, “Service Multiplex and Transport Subsystem Characteristics” (January 3, 2007), IBR approved for §73.682.

(iv) A/53, Part 4:2007, “MPEG-2 Video System Characteristics” (January 3, 2007), IBR approved for §73.682, except for §6.1.2 of A/53 Part 4: 2007, and the phrase “see Table 6.2” in section 6.1.1 Table 6.1 and section 6.1.3 Table 6.3.

(v) A/53, Part 5: 2010, “AC-3 Audio System Characteristics” (July 6, 2010), IBR approved for §73.682.

(vi) A/53, Part 6:2007, “Enhanced AC-3 Audio System Characteristics” (January 3, 2007), IBR approved for §73.682.

(3) [Reserved]

(4) ATSC A/65C: “ATSC Program and System Information Protocol for Terrestrial Broadcast and Cable, Revision C With Amendment No. 1 dated May 9, 2006,” (January 2, 2006), IBR approved for §§73.682.

(5) ATSC A/85:2013 “ATSC Recommended Practice: Techniques for Establishing and Maintaining Audio Loudness for Digital Television,” (March 12, 2013) (“ATSC A/85 RP”), IBR approved for §73.682.

(6) ATSC A/321:2016, “System Discovery and Signaling” (March 23, 2016), IBR approved for §73.682.

(7) ATSC A/322:2017 “Physical Layer Protocol” (June 6, 2017), IBR approved for §73.682.

(c) [Reserved]

(d) The following materials are available at the Federal Communications Commission's Reference Information Center, located at the address of the FCC's main office indicated in 47 CFR 0.401(a), or at the FCC's Office of Engineering and Technology (OET) website: http://www.fcc.gov/oet/info/documents/bulletins/.

(1) OET Bulletin No. 69: “Longley-Rice Methodology for Evaluating TV Coverage and Interference” (February 6, 2004), IBR approved for §73.616.

(2) [Reserved]

[76 FR 62642, Oct. 11, 2011, as amended at 76 FR 55604, Sept. 8, 2011; 77 FR 40299, July 9, 2012; 79 FR 51113, Aug. 27, 2014; 83 FR 5026, Feb. 2, 2018; 85 FR 64408, Oct. 12, 2020]